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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.

Less than
None of these
Equal to
More than

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Hydraulics and Fluid Mechanics in ME
The cavitation in a hydraulic machine

Causes sudden drop in power output and efficiency
All of these
Reduces the discharge of a turbine
Causes noise and vibration of various parts

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Hydraulics and Fluid Mechanics in ME
The force present in a moving liquid is

All of these
Inertia force
Viscous force
Gravity force

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is suitable for small discharge and high heads?

Mixed flow pump
Axial flow pump
Centrifugal pump
Reciprocating pump

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Hydraulics and Fluid Mechanics in ME
Centrifugal pump is started with its delivery valve

Kept 50% open
Kept fully closed
Kept fully open
Irrespective of any position

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Hydraulics and Fluid Mechanics in ME
If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is

4
1
43924
2

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